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netlink: implement nla_put_in_addr and nla_put_in6_addr

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IP addresses are often stored in netlink attributes. Add generic functions
to do that.

For nla_put_in_addr, it would be nicer to pass struct in_addr but this is
not used universally throughout the kernel, in way too many places __be32 is
used to store IPv4 address.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Benc 2015-03-29 16:59:25 +02:00 • committed by David S. Miller
parent 15e318bdc6
commit 930345ea63
29 changed files with 139 additions and 124 deletions
Download patch file Download diff file Expand all files Collapse all files

16
net/ipv4/tcp_metrics.c
View file

@ -786,19 +786,19 @@ static int tcp_metrics_fill_info(struct sk_buff *msg,
switch (tm->tcpm_daddr.family) {
case AF_INET:
if (nla_put_be32(msg, TCP_METRICS_ATTR_ADDR_IPV4,
tm->tcpm_daddr.addr.a4) < 0)
if (nla_put_in_addr(msg, TCP_METRICS_ATTR_ADDR_IPV4,
tm->tcpm_daddr.addr.a4) < 0)
goto nla_put_failure;
if (nla_put_be32(msg, TCP_METRICS_ATTR_SADDR_IPV4,
tm->tcpm_saddr.addr.a4) < 0)
if (nla_put_in_addr(msg, TCP_METRICS_ATTR_SADDR_IPV4,
tm->tcpm_saddr.addr.a4) < 0)
goto nla_put_failure;
break;
case AF_INET6:
if (nla_put(msg, TCP_METRICS_ATTR_ADDR_IPV6, 16,
tm->tcpm_daddr.addr.a6) < 0)
if (nla_put_in6_addr(msg, TCP_METRICS_ATTR_ADDR_IPV6,
&tm->tcpm_daddr.addr.in6) < 0)
goto nla_put_failure;
if (nla_put(msg, TCP_METRICS_ATTR_SADDR_IPV6, 16,
tm->tcpm_saddr.addr.a6) < 0)
if (nla_put_in6_addr(msg, TCP_METRICS_ATTR_SADDR_IPV6,
&tm->tcpm_saddr.addr.in6) < 0)
goto nla_put_failure;
break;
default: